[Joker45]

Well today I finally got to Dyno my car. I showed up at AED (Advanced Engine Development) and met up with Drew. After 180 mile trip he put it on the dyno and did a stock pull and then we swapped out the TB for the L&M. No other changes were made.



Pretty good gains from just a TB swap!

The plenum was then swapped out and no other changes were made.



As you can tell peak HP and TQ was down over the stock plenum. It was up alittle over the stock piece in places but overall it was down about 3 hp and 5 tq in the peak areas. This was also after about a 50 minute cool down between runs.

Here's a photo of the difference with the L&M Plenum installed. As you can see from the photo there is alot of material that would need to be removed to port match it. Drew did not want to attempt this on the car and we didn't have time to pull the blower and do it today.



So the Plenum was removed and the stock one put back on. The upper pulley was then changed out and dyno'ed it again.

I officially made it to the 650 RWHP CLUB!!!



So over all I gained 57 rwhp and 55 tq from a pulley change, TB swap and new tune. My A/F ratio was really good on the new tune from VMP and pretty steady at about 11.4-11.6



Drew was really surprised with the L&M TB. As for the plenum, I did not put it back on and make another pull with the 2.65 upper on. Would it have made a difference? I can't say for sure. I am sure I will research this more in the future.

As for drivability of the L&M TB, It actually felt smoother on my way home. I can not give it an apples to apples comparison as I did not drive it with the same tune installed. The first tune was a EVO TVS tune and when I drove it home it was a VMP stage 2 tune. With the new tune the super charger does not come on boost with as little gas pedal application as it did before. I'm guessing this has to be a difference in the tunes. Acceleration felt smooth in traffic with no hanging idle or anything weird. No trouble codes. The power is definitely there though! Also, I am getting better gas milage now. I averaged 21.1 MPG on the way home. That was about 2 mpg better then on the way up there. Speeds were pretty consistant in both directions.

I have to say that the L&M TB is a winner for sure.



I also have to give it up to Drew from AED! He is a stand up guy and answered a ton of questions and was very helpful and super easy to work with on testing the new parts. He is definitely someone that I would do business with in the future. So if your in the area I would highly recommend him.

Also, Thanks Art for coming all the way there and hanging out with me. It was great to met you and look forward to seeing you again soon.

[JimC]

They are good.
Impressive results.
You will enjoy the faster and smother responsiveness, it’s gonna be easier and more fun to drive now.
Congrats!!

[enormous]

A good write up and photos for sure. I wonder why the L&M Plenum did not preform better than it did. I expected to see better results with it.

[GT500_ROCKS]

enormous, on Nov 15 2009, 08:41 AM, said:

A good write up and photos for sure. I wonder why the L&M Plenum did not preform better than it did. I expected to see better results with it.

from looking at that pic, he is getting flow pulses from the lip going into the blower, when/if he matches it the hp will increase..

[Tob]

Joker,
do you know if your A/F ratio was tested in an existing bung, an add-on bung, or at the tail pipe?

Does Justin's tune shut off any strategies or the rear O2 sensor? Are you running cats?

Tob

[Seahorse]

Excellent comparison test, thanks! Nice results too!

[2010 Grabber Blue Shelby]

I know someone who had the LM TB and plenum done at TASCA and they port matched the Plenum with the blower with good results. I think a 20 hp gain.

[hydro]

2010 Grabber Blue Shelby, on Nov 15 2009, 12:40 PM, said:

I know someone who had the LM TB and plenum done at TASCA and they port matched the Plenum with the blower with good results. I think a 20 hp gain.

I see by the plenum picture the port match was not nearly as good as others I have seen.
With the high flow of the TVS that would most certainly contribute to high turbulance on the outlet side especially the short side of the plenum making the outlet side opening effectively smaller even than stock leading to the dyno readings shown.In this case a port match would not be optional but a necessity.hydro

This post has been edited by hydro: 27 November 2009 - 03:07 PM

[KR158]

Good write up, question though. If you had Justin do your tune and pulley why not use the vmp 67mm and elbow or vmp 72 and large elbow?

This post has been edited by KR158: 15 November 2009 - 08:45 AM

[Joker45]

enormous, on Nov 15 2009, 05:41 AM, said:

A good write up and photos for sure. I wonder why the L&M Plenum did not preform better than it did. I expected to see better results with it.

Thanks. I did also. But as GT500_500 said there was a pretty good lip on mine and I think that really messed up the air flow and caused too much turbulence.

GT500_ROCKS, on Nov 15 2009, 06:07 AM, said:

from looking at that pic, he is getting flow pulses from the lip going into the blower, when/if he matches it the hp will increase..

[Joker45]

Tob, on Nov 15 2009, 06:28 AM, said:

Joker,
do you know if your A/F ratio was tested in an existing bung, an add-on bung, or at the tail pipe?

Does Justin's tune shut off any strategies or the rear O2 sensor? Are you running cats?

Tob

It was tested in a existing bung. Justing's tune did not shut off the rear 02. Yes I am running the stock exhaust manifolds and cats.

Seahorse, on Nov 15 2009, 07:06 AM, said:

Excellent comparison test, thanks! Nice results too!

Thank you.

[Joker45]

2010 Grabber Blue Shelby, on Nov 15 2009, 07:40 AM, said:

I know someone who had the LM TB and plenum done at TASCA and they port matched the Plenum with the blower with good results. I think a 20 hp gain.

I think that's very possible with mine too. I think my TVS just was not quite as opened up already as some and it really hurt me.

hydro, on Nov 15 2009, 08:20 AM, said:

I see by the plenum picture the port match was not nearly as good as others I have seen.
With the high flow of the TVS that would most certainly contribute to high turbulance on the oulet side especially the short side of the plenum making the outlet side opening effectively smaller even than stock leading to the dyno readings shown.In this case a port match would not be optional but a necessity.hydro

That's pretty much what we figured yesterday too. I already talked to them about doing it and the cost involved. It would figure that I would get the TVS that isn't as close as it should be.

KR158, on Nov 15 2009, 08:45 AM, said:

Good write up, question though. If you had Justin do your tune and pulley why not use the vmp 67mm and elbow or vmp 72 and large elbow?

I wanted the L&M TB as soon as I started hearing about it. Not a knock against anyone else but it sounded very promising and I was curious. That's why I did this testing. Not only for my benefit but for the others that wanted to know about it from an independent person. I also got really tired of hearing people slamming L&M from the beginning on the TB and saying that good gains were not possible from their TB. I figured this way it would show one way or another.

[GT500Tow]

If your referring to me. As the Slammer. I still stand behind what i said. Your not going to get 50 HP from a T/body. It took Tune, pulley, intake, and T/body. 20 HP isnt bad. I just call it like i see it. Thats all. I still may buy one. Thanks for testing. I shows i was right.

[Joker45]

GT500Tow, on Nov 15 2009, 11:14 AM, said:

If your referring to me. As the Slammer. I still stand behind what i said. Your not going to get 50 HP from a T/body. It took Tune, pulley, intake, and T/body. 20 HP isnt bad. I just call it like i see it. Thats all. I still may buy one. Thanks for testing. I shows i was right.

Well actually I gained 24 just from the TB. That was on the stock pulley. I didn't take the L&M off once the pulley was changed to see what it made with the smaller pulley as it flows more air then and the difference should have been greater. I'm betting it would have been around 30. With a pulley, tune and TB it was a gain of 57.4 rwhp. No changes to the intake were made. No matter what I haven't heard of any other TB making this possible without changes to the tune. Even with a tune being changed for the TB on others they still don't make that kind of Jump I don't believe. I'm just showing people what I came up with on my own. With a different combo of parts I'm betting the increase has the potential to be even greater. But on my setup that's what I got.

[bchorney]

Joker:
Great write up with photos!! Thank you for sharing. I have all winter to start thinking about what to do with my car next summer. This kind of info helps.
Cheers
Brett

[Slabo]

bchorney, on Nov 15 2009, 11:43 AM, said:

Joker:
Great write up with photos!! Thank you for sharing. I have all winter to start thinking about what to do with my car next summer. This kind of info helps.
Cheers
Brett

+1

Thanks Joker great info! It’s always nice to have independent results. 24 HP from a bolt on TB with no tune changes and stock drivability seems sweet to me. Interesting results on the plenum, sure looks like it requires porting or you could get worse results.

[Joker45]

bchorney, on Nov 15 2009, 11:43 AM, said:

Joker:
Great write up with photos!! Thank you for sharing. I have all winter to start thinking about what to do with my car next summer. This kind of info helps.
Cheers
Brett

No problem. That's why I did this. Out of my own curiosity I wanted to know what they would do. Hope it helps some people in their decision process.

Slabo, on Nov 15 2009, 12:01 PM, said:

+1

Thanks Joker great info! It’s always nice to have independent results. 24 HP from a bolt on TB with no tune changes and stock drivability seems sweet to me. Interesting results on the plenum, sure looks like it requires porting or you could get worse results.

Well after talking with BlackShelby today we both agree that the extra material on my TVS caused the issues that I saw. After he looked at the pictures that I took, he said that was the most he had seen in his testing. I got some good info from him on how to take care of it and now I think I might be the exception and not the rule on this issue. There was a possible easy fix for this and I didn't try and get ahold of him while I was up there. If I had I most likely would have seen different results on the plenum. Also after talking to him, the port matching that I could have done did not require the removal of the TVS to get it done safely. Again, I should have tried to get ahold of him yesterday while I was up there. But I was really focused on what we were doing at the time and didn't even try.

[gr8snkbite]

yea once you port match, i think you'll see better results. still researching the other parts for you...

[KR158]

Thank you again. I have been wanting to see a dyno test like this for osme time on the various tb's. I am still looking at vmp 67mm and lm. Justin has done all work to my car and I have been very happy. If I could see a dyno like this just bolted on it would help. I have a stage 2 car and stock blower and hope to get the tvs in the next few months. Glad to see if I get the lm I should see 20whp. I wonder will I see the same gain on a stock blower being smaller? Either way I am impressed by the lm. Any dynos with the vmp 67 out there please post up as I am ready to pull the trigger on one of these tb's.

[Joker45]

KR158, on Nov 15 2009, 03:33 PM, said:

Thank you again. I have been wanting to see a dyno test like this for osme time on the various tb's. I am still looking at vmp 67mm and lm. Justin has done all work to my car and I have been very happy. If I could see a dyno like this just bolted on it would help. I have a stage 2 car and stock blower and hope to get the tvs in the next few months. Glad to see if I get the lm I should see 20whp. I wonder will I see the same gain on a stock blower being smaller? Either way I am impressed by the lm. Any dynos with the vmp 67 out there please post up as I am ready to pull the trigger on one of these tb's.

Your welcome.

This is just a guess on my part but with your stage 2 with stock blower I would guess you would be in the 15-20 rwhp range with the L&M. Again that's just a guess on my part based on what I have seen on my own car.